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A chamber outline with burner marks and a stack.
Also known as: Furnace symbol, Process heater symbol, Fired furnace symbol
On a process diagram a fired heater is drawn as a chamber containing a coil, with burners marked at the base and a stack above, heating process fluid by direct combustion.
Denotes a heater raising process fluid temperature by direct firing rather than by exchange with another stream.
Contexts: Technical drawing
Is drawn with its stack because the flue path is part of the equipment, unlike an exchanger which has no combustion side.
Contexts: Technical drawing
A tall rectangle containing a coiled line, with short marks at its base representing burners and a narrow stack rising from the top.